Western Australia will further delay easing its remaining coronavirus restrictions despite having gone six straight days with no new cases, with the premier refusing to join a Tasmanian travel bubble.
Premier Mark McGowan has confirmed the state will no longer proceed as planned to phase five restrictions on August 1.
A tentative date of August 15 has been earmarked instead.
Phase five was initially scheduled to begin on July 18, removing all remaining limits on gatherings and allowing crowds of 60,000 at Optus Stadium.
But concerns about high case numbers in Victoria have prompted WA's chief health officer to recommend maintaining the status quo.
"We are unashamedly being extra cautious here," Mr McGowan said on Friday.
"I think by delaying phase five, we're sending a very strong message to the public that we're not out of the woods yet.
"You can see what has happened in Victoria and we don't want that to happen here."
Attendance at Optus Stadium is currently capped at 30,000 while a two square-metre rule remains in place at hospitality venues.
There is no prospect of WA's interstate border restrictions being removed in the near future, with the premier firmly rejecting the proposed Tasmanian travel bubble.
Tasmanian counterpart Peter Gutwein on Friday announced his state would open its borders to WA, South Australia and the Northern Territory from August 7.
"We're not doing that," Mr McGowan said.
"We are not going to compromise our borders."
Mr McGowan said WA had benefited from the recent introduction of a cap on international arrivals and fewer exemptions for travellers from Victoria and NSW, with the number of people in hotel quarantine falling to about 1400. The state has 12 active cases.
Authorities have followed up with every person arriving from Victoria in July and no positive tests have been recorded, he added.
Mr McGowan also confirmed Australian Defence Force had agreed to assist the 240 security personnel working in quarantine hotels.
The force will provide about 40 reservists, drawing upon those based in WA who are not already providing essential services.